Summary of Restricted Stock Unit Activity (Detail) - USD ($) $ in Thousands		6 Months Ended	12 Months Ended
		Jun. 30, 2022	Dec. 31, 2021	Jun. 30, 2021
Options Outstanding
Unvested at December 31, 2021		606,685
Awarded		144,845
Vested		(175,647)
Forfeited/expired/cancelled		(24,854)
Restricted stock units, outstanding		551,029	606,685
Vested and expected to vest at March 31, 2022	[1]	535,061
Weighted-Average Remaining Contractual Term (in years)
Unvested at December 31, 2021		3 years	3 years 25 days
Vested and expected to vest at March 31, 2022	[1]	2 years 7 months 17 days
Aggregate Intrinsic Value
Unvested at March 31, 2022		$ 89,487	$ 160,674
Vested and expected to vest at March 31, 2022	[1]	$ 86,894
Restricted Stock Units and Performance Stock Units
Options Outstanding
Restricted stock units, outstanding		551,029		618,618

[1] Represents the number of vested stock units as of June 30, 2022 plus the number of unvested stock units expected to vest as of June 30, 2022 based on the unvested outstanding stock units at June 30, 2022 adjusted for estimated forfeiture rates of 8% for awards granted to non-executive level employees and 3% for awards granted to executive level employees.